Organic Lab Answer 18

Organic Lab Answer 18 - O R H PPh 3- O R PPh 3 PPh 3- O R...

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18 Nam, H.H.; Leroi, G.E. J. Am. Chem. Soc. 1988 , 110 , 4096 (first observation of 3,4-pyridyne) Betaines (phosphonium betaines) PR 3 R 3 R 4 - O R 1 R 2 + Reviews: Wittig, G. Pure Appl. Chem. 1964 , 9 , 245 Vedejs, E. Science 1980 , 207 , 42 Wittig, G. Science 1980 , 210 , 600 Br PPh 3 PPh 3 - nBuH - LiBr nBuLi _ + Br - + + PPh 3 ylide
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Unformatted text preview: O R H PPh 3- O R PPh 3 PPh 3- O R R- LiO t Bu- O=PPh 3 t BuOH betaine _ + + + + _ Li + PhLi- PhH Wittig, G.; Schöllkopf, U., Chem. Ber. 1954 , 87 , 1318 Wittig, G.; Haag, W. Chem. Ber. 1955 , 88 , 1654 Wittig, G.; Pommer, H. DE 32741 BASF (1954) Biradicals...
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This note was uploaded on 12/14/2011 for the course CHM 2212 taught by Professor Dr.portmess during the Fall '10 term at University of Florida.

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